Cable Grips | Supporting Inter-array, Export, Umbilical & Subsea Cable Installations
Published 08 Jul 2021
Cable Grips
uploaded by Chris Dodds | Sales Marketing Manager at Thorne & Derrick International
Cable Grips
Pulling & Supporting Power & Subsea Cables in the Wind Sector
Slingco have developed a range of cable grips (commonly referred to as cable socks) specifically tailored to the needs of the renewable energy sector – working with Slingco we have produced engineered and customised solutions using cable grip innovation for Boskalis, NKT, Nexans, DEME and other major cable laying contractors for the connection of wind farm projects globally.
Thorne & Derrick have extensive ranges of marine cable grips and hose restraint grips – applications including LV MV HV EHV cable installation (onshore and offshore), support and gripping of cables inside wind turbines, pulling cables shore-to land, substation cable laying and general cable management. We have also developed a range of cable pulling grips for use in the installation and pulling of inter-array and export cables from offshore windfarm installations. We offer a complete range for cable diameters up to 350mm , 10Te to 90Te+ MBL in galvanised steel, stainless steel and aramid fibre.
Cable Grips | Standard Double Eye Cable Support Grips are available for low/medium/high voltage power cable pulls and support with approximate break loads up to 27,000kgs, stainless steel 316 grade option and outside cable diameter capacity of 250mm. Customer Application Cable Grips available on request.
Marine Grip Options
Option 1 – Limited Lay Down
Galvanised cable grips with aluminium ferrules are suitable for cable installation / loading and typically used for OSS pull in.
Option 2 – Limited Lay Down / Wet Storage
Galvanised grips with galvanised steel ferrules for installation / loading with limited wet storage that can be further extended for longer wet storage with the addition of an anode.
Option 3 – Lay Down / Wet Storage up to 1000 Hours
Stainless steel cable grips with stainless steel ferrules for laying and limited wet storage up to <1000 hours, subject to inspection after such time elapsed.
Option 4 –Â Lay Down / Wet Storage over 1000 Hours
Non-metallic grips in Aramid for used for cable laying and wet storage applications over >1000 hours, these would be the preference of the leading installation contractors based in the Netherlands and Europe, degradation was not seen other than some signs of salt on the surface. Non-metallic cable grips are specified to provide safe cable handling and are used for offshore saltwater environments when prolonged lay down durations are required.
Supplied by Thorne & Derrick
Wind Energy Cables
Pulling & Supporting Power & Subsea Cables in the Wind Sector | These cable socks manufactured from offshore/marine grade type 316 Stainless Steel are suitable for use in the renewable energy sector in applications such as cable installation (onshore and offshore), cable support inside wind turbines and cable management – used to pull, protect and support wind turbine cables. Pictured: June 2020 : the first of two export cables, each 37 kilometres in length, has been installed at the nearshore of Thorntonloch Beach as part of construction of the Neart na Gaoithe (NnG) Offshore Wind Farm.
Wind Turbine Support Grip
- Cable supports designed for minimal contact with the actual cable
- High working loads and cable support
- Manufactured from 316 stainless steel for corrosive atmospheres
- Rounded copper ferrules
- Bespoke cable grip design options available
For wind turbines, special features have been included to allow for minimal contact with the actual cable while still allowing impressive working loads and cable support. The range of cable support grips for wind turbines are woven from 316 stainless steel and feature rounded copper ferrules, offering reduced cable contact for high vibration environments. In addition to the standard range of catalogued cable grips and pulling socks we can offer a custom design service to suit your cable support requirements.
Cable Grips, Socks & Support products for the Renewable Industry
Single Eye | Double Eye | Lace-Up Grips for Marine Offshore Cable Support & Pulling | Extreme Heavy Duty for Underwater Application up to 550mm Cable Diameters
- Hose Restraint Cable Grips
Hose Restraint Grips | Heavy Duty Hose Restraint Grips | Hose Armour Grips for Hose Protection | 316 Stainless Steel U Type Hose Grips | Prevents Whipping From Detached Pressure Hoses
- Non-Metallic Cable Grips (Aramid)
- Wind Turbine Support Grips
- Extended Thimble Eye Heavy Duty Stainless Steel Cable Grips
Slingco has 40 years of experience manufacturing marine cable grips via their Distributor Network including Thorne & Derrick serving customers in over 70 countries worldwide – they are an award-winning supplier of high-quality cable grip, cable sock and wire rope products, having won the Queen’s Award for Export International Trade in both 2016 and 2020.
Large Cable Project Capacity & Delivery
Slingo and Thorne & Derrick are known for their excellent customer service, technical support and on-time order fulfilment – additionally we have the skills, experience and manufacturing capacity to deliver on the most challenging demands. From initial product design and manufacture to technical support and customer service, our aim is to become a partner you can trust for the safe installation, support and pulling of cable in the wind energy sector.
Client Confidence | Test Reports Certification
Quality matters in all industries, but none more so than those we serve. Every Slingco product is designed, manufactured and tested to exacting standards to ensure safe and reliable operation under the most challenging conditions – this level of customer service is backed-up with detailed test reports and relevant certification, all available on request.
Aramid | non-metallic / non-conductive marine grip manufactured from Aramid recommended for array / export cable installation were the cable needs to be laid down for a prolonged duration before installation.
fURTHER iNFORMATION
- Cable Pulling | 37km Offshore Cable to Connect NnG to Onshore Substation
- Slingco Take A Firm Grip on The Future With Cable Socks
- MV HV Cable Laying, Installation & Support Products | Offshore Windfarms
Image Courtesy | Max States Site Engineer at Balfour Beatty plc (Viking Link) – here the EHV 526kV cable is pictured being pulled from a 62 tonne cable drum (1240m circuit) into the cable trench via rollers in July 2021. Viking Link is a 1,400 MW HVDC submarine power cable under construction between the United Kingdom and Denmark.
Cable Pulling & Laying Equipment
Suppliers & Distributors
Thorne & Derrick distribute the most extensive range of Low & High Voltage Cable Installation & Electrical Distribution Equipment to the Power Transmission & Distribution industry in the onshore and offshore wind, solar, rail, oil/gas, data centre, battery storage and utility sectors – this includes the most extensive range of Cable Pulling & Cable Laying Equipment to enable the installation of low, medium and high voltage power cables into underground trench or duct.
We service UK and international clients working on underground cables, overhead lines, substations and electrical construction at LV, 11kV/33kV and up to EHV transmission and distribution voltages.
Key Products: MV-HV Cable Joints & Terminations, Cable Cleats, Duct Seals, Cable Transits, Underground Cable Protection, Copper Earth Tapes, Cable Jointing Tools, Feeder Pillars, Cable Ducting, Earthing & Lightning Protection, Electrical Safety, Cable Glands, Arc Flash Protection & Fusegear.
Distributors for: 3M Electrical, ABB, Alroc, Band-It, Cembre, Centriforce, CMP, Elastimold, Ellis Patents, Emtelle, Furse, Lucy Zodion, Nexans Euromold, Pfisterer, Polypipe, ProGARM, Prysmian, and Roxtec.
- Scope –single-source supply of extensive range of products
- Stock – a multi-million pound stock holding provides complete global supply solutions
- Staff – technical support from a trained, proactive and friendly team
- Delivery – UK stock turnaround with express logistics to all international destinations
Further Reading | Cable Drum Handling & Laying Cables | A Guide from Nexans
